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प्रश्न
State the following:
The group which contains highly reactive electronegative non-metals including chlorine.
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उत्तर
Highly reactive group 17 [VII – A].
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संबंधित प्रश्न
What are the following group known as?
Group 17
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas with duplet arrangement of electrons.
Write the reactions of the first three alkaline earth metals with dilute hydrochloric acid.
Name the gas used in:
Filling balloons
Name the gas used in:
Bright colour advertising light works
Write a short note on the following type of element –
noble gases
State the main helpful features of the long form of the periodic table.
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
Match the elements of List – I with their type from List – II.
| List – I | List – II |
| 1. Highly reactive, univalent metals | A: Halogens |
| 2. Highly reactive, univalent non-metals | B: Transition elements |
| 3. Unreactive, inert elements | C: Alkali metals |
| 4. Elements of group 3 to 12 [IB to VII B and VIII] | D: Lanthanide series |
| 5. Radioactive elements | E: Noble gases |
| F: Actinide series |
